Pneumatic-service carrier.



PATENTBD MAY 14..l 1907.

Non v M. B. RIFPO.

BNBUMATIG SERVICE CARRIER.

APPLIUTION FILED QOT.13.19 0R.

"IN VEN 70H iid/uml? from/Er.

rus NoRRls PETERS co., wAsmNcyoN, u. c.

MARION B. RIFFO, OF PHILADELPHIA, PENNSYLVANIA.

PNEUIVIATlC-'SERVICE CARRIER.

Specification ef Letters Patent.

Patented May 14, 1907.

Original applicationled December 18, 1905, Serial No. 292,396. Dividedand this application filed October 13, 1906.

T (MZ whom, t may cwwer'lt:

Be it known that I, MARION B. RIFFO, a citizen of the United States,residing in the city of Philadelphia, State of Pennsylvania, haveinvented certain new and useful Improvements in PneumatidServiceCarriers, of which the following is a full, clear, and eX- actdescription, reference being had tothe accompanying drawings, forming apart of this specification.

My invention relates to carriers for use in despatch tubes inpneumaticallyeoperated service system, and has for its object to providemeans operating as well to limit the relative rotation of thetelescoping tubular members of the carrierias also to maintain them inoperative relation by preventing their accidental endwise dissociationin driving the carrier through the despatch tubes, the means provided,and their specific combination and arrangement, also permitting easyseparation of the members for repair or replacement of parts when wornout.

To attain these objects my invention consists of the combination andarrangement of elements, hereinafter described, to perform the functionsstated, my present application being a division of a pending and allowedapplication Serial No. 292,396, iiled December 18,1905. j

In the'drawings hereto annexed, in which the same letters of referenceyindicate like parts in the several views :-Figure 1 is a longitudinalsectional view of my new carrier; Fig. 2 is a transverse section on line2-2 of Fig. 1 Fig. 3 is a transverse section on line 3-3 of Fig. 1, andFig. 4 is a like view of a modified form, in that the stop-mechanism onthe co-acting members of Fig. 3, are reversed.

In pneumatic service carriers as commonly constructed, the essentialelements are a pair of cylindrical tubes, each having a closed head endand an open end, the tubes being assembled sleeve-like, that is to say,telescoping, the open end of each tube brought to bear, directly orindirectly, against the headend of the other tube, both tubes beingperipherally slotted longitudinally, saidslots being` adapted toregister on the relative rotation of the tubes one within the other, andwith means to limit the rotation, consisting usually of an outwardlyprojecting lug on the inner tube and a recessed transverseextension ofthe peripheral slot in the outer tube.

Serial No. 338,729.

These devices are necessarily subjected to hard wear, tending toseparate the tubes, by a springing of the outer tubular body, whichwholly destroys their usefulness, and more-l over the combinationreferred to prevents easy repair of parts.

In my device hereinafter described, the tubular members vare constructedas heretofore save for the modification of the open end of the innertube ashereinafter described, but the means for operatively uniting themand limiting their relative rotation, are different, are new and of myinvention, and these I will now describe.

The outer tubular member (Figs. 1 to 4) is indicated at 2, and is acylindrical hollow tube having a head end 3 shown integral therewith,the opposite end being open. It is peripherally slotted, longitudinally,at 4. The inner tube is similarly constructed, 6 indicating its closedhead end, but its opposite open end has an inwardly projecting iiange25. These tubes are assembled by bringing the open end of the outer tube2 over the open end of the inner tube 5, ini

sleeve-like manner, the tubes fitting each other reasonably close andadapted to rO- tate relatively, one within the other, so that theperipheral openings or slots 4 in the tubes may, by such relativerotation, be brought into register or thrown out of coin-i cidence, toopen or close the carrier.

Fitting tightly over the headend 6 of the inner tube 5 is astrengthening and closing plate disk-like in form, and having aninwardly projecting annular flange 2l 'alining with and abutting againstthe open end of the outer tube 2 this plate 2() being securely fastenedto said head end 6 of the inner tube by a rivet 10, and both of themfastened by 9 removable screw bolts 9 to the buffer head 11 by means ofthe inset blocks 22 and 23 therein.

Fitting tightly within the inner tube 5, at its open end, is a disk-likeclosing plate 7, serving to hold the several parts, when assembled ashereinafter stated, from normal longitudinal separation. This plate 7 ispreferably supplied with a short annular flange 17, projecting inwardly.This disk 7 rests against the facev of the inturned fiange on the openend of the inner tubular member 5; and that flange in turn rests againstthe head end 3 of the outer tube. The flange 25 is therefore between theclosing disk 7 and the headend 3 of the outer tube, as shown in Fig. l.This llange 25 forms one element of a co-acting stop mechanism, theother element of Which is a disk 29 of slightly smaller diameter, whichalso is interposed between the closing disk 7 and the headend 3 of theouter tubular member, and it so rests within the open end ol' the innertubular member and in alinement with the annular llange 25 on said openend ol' the inner tube. Said closing disk 7, said inner disk 29 and theheadend 3 of the outer tubular member, are securely fastened together bya rivet 10, and all of them as a whole fastened by removable screw-bolts9 to the butler head 11. Thus it is seen that the closing disk 7, theinner disk 29 and the outer tubular member 2, being fastened together,will always rotate together relatively to the inner tubular member 5,the inturned flange 25 of which will rotate around the relatively Xedinner disk 29 and in the same vertical plane therewith. The stopmechanism is provided between the coincifling peripheral edges of saidllange 25 and of said disk 29, and consists of a segmental recess on oneof them with a co-acting tooth on the other. In Fig. 3, the inner lixeddisk 29 has its peripheral edge cut away for a segmental distance toallow a partial rotation only of the coinciding flange, 7 ol the innertubular member which carries a stop tooth 28 projecting into suchsegmental recess. In

, Fig. 4 I have shown the reverse arrangement of these co-acting stopelements, in which the tooth stop 28 is on the inner iiXe-d disk 29 andthe segmental recess is on the inturned lange 25 of the inner tubularmember.

Having thus described my invention, I claim as new and desire to secureby Letters Patent 1. A carrier for pneumatic service systems consistingof a pair of cylindrical tubular members arranged relatively rotatableanfl peripherally slotted, each provi-.ieri with a closed head end andan open end, means to maintain said tubes from relative, longituclinalmovement, the inner ot saiil tubular members having at its open end aninturnefl annular flange, a disk smaller than sai annular llange xedlysecured to the interior face of the head end of the outer tubularmember, with a projecting stop anni co-aeting segmental recess betweenthe coinciding peripheries ol said disk and flange operating` to limitthe relative rotation o'l said tubular members.

2. A carrier ol the class recited comprising apair ol telescoping andrelatively rotatable cylindrical tubular members, peripherally slotted,each with a heafi en-fl anal an open end, a cap over the heafi` emi ofthe inner member, means to lasten them together anzi to a butler head,in combinatioii with means to limit the relative rotation ol sait/ltubular members, consisting ol an inwardly projecting annular Vllange onthe open eni of the inner tube, a disk peripheally smaller than andarranged within' the opening l'ormed by said annular llange, and aprojecting stop and co-acting segmental recess between the coincidingperipheries ol said :iisk and flange: and means to maintain saidelements in operative register, consisting ot an interiorly arrangedflanged disk abutting against the inturned llange ol the inner tube, with means to maintain said coinciiing elements in lixel relation to eachother anzi to a butler hear.

In testimony whereof, I have hereunto allixed my signature this 'liourthtay ol" )etober A. D. 1906.

MARION B. RIFFO. Iitnesses 1 HENRY T. GULmmNN, A. M. BIDDLE.

